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Inbred corn line NPFA4212GT21

a corn line and corn technology, applied in the field of corn breeding, can solve the problems of difficult production of inbred seeds, and achieve the effect of increasing or decreasing starch or increasing or decreasing the life cycle of disease resistan

Active Publication Date: 2013-04-16
SYNGENTA PARTICIPATIONS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent text discusses the use of marker assisted breeding techniques to introduce desired traits into maize lines with reduced backcrossing. The use of markers such as SSR, microsatellites, and SNP make it faster to locate lines with the desired traits. This allows for the introduction of multiple genes or traits during a single gene conversion process, resulting in lines with the characteristics of the present invention plus those of the added traits. Overall, this method reduces the time and effort required to create desirable maize lines.

Problems solved by technology

Inbred seed can be difficult to produce since the inbreeding process in corn lines decreases the vigor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0121]The inbred provides uniformity and stability within the limits of environmental influence for traits as described in the Variety Description Information (Table 1) that follows.

[0122]Male sterility and / or CMS systems for maize parallel the CMS type systems that have been routinely used in hybrid production in sunflower. Male sterility can be accomplished by transgenes, by chemicals, by a mixture of transgenes, natural or induced sterility mutations, and / or chemicals.

[0123]To produce hybrids, the companies must develop inbreds, which carry needed traits into the hybrid combination. Hybrids are not often uniformly adapted for the entire Corn Belt, but most often are specifically adapted for regions of the Corn Belt. Northern regions of the Corn Belt require shorter season hybrids than do southern regions of the Corn Belt. Hybrids that grow well in Colorado and Nebraska soils may not flourish in richer Illinois and Iowa soils. Thus, a variety of major agronomic traits is important...

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Abstract

Basically, this invention provides for an inbred corn line designated NPFA4212GT21, methods for producing a corn plant by crossing plants of the inbred line NPFA4212GT21, with plants of another corn plant. The invention relates to the various parts of inbred NPFA4212GT21, including culturable cells. This invention also relates to methods for introducing transgenic transgenes into inbred corn line NPFA4212GT21, and plants produced by these methods.

Description

FIELD OF THE INVENTION[0001]This invention is in the field of corn breeding. The invention relates to a maize and its seed designated NPFA4212GT21, derivatives and hybrids thereof. This invention also is in the field of hybrid maize production employing the present inbred.BACKGROUND OF THE INVENTION[0002]Corn plants (Zea mays L.) can be self-pollinating or cross pollinating. Self pollination for extended time periods produces homozygousity at almost all gene loci, forming a uniform population of true breeding progeny. These are inbreds. Crossing two homozygous inbreds produces heterozygous gene loci in hybrid plants and seeds.[0003]Maize plant breeding is a process to develop improved maize germplasm in an inbred or hybrid. Hybrids are developed with inbreds which are developed by selecting corn lines and self pollinating these lines for several generations to develop homozygous pure inbred lines. Two inbred lines are crossed and hybrid seed is produced. One inbred is emasculated an...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A01H1/00A01H5/00C12N5/04A01H5/10A01H1/02
CPCA01H5/10A01H6/4684
Inventor PREST, THOMAS JOSEPHWOLF, DUANE P
Owner SYNGENTA PARTICIPATIONS AG
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